2104551 has 12 divisors (see below), whose sum is σ = 3057912. Its totient is φ = 1394736.

The previous prime is 2104547. The next prime is 2104567. The reversal of 2104551 is 1554012.

2104551 is a `hidden beast` number, since 210 + 455 + 1 = 666.

It is not a de Polignac number, because 2104551 - 2² = 2104547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1180 + ... + 2366.

It is an arithmetic number, because the mean of its divisors is an integer number (254826).

2^2104551 is an apocalyptic number.

2104551 is a deficient number, since it is larger than the sum of its proper divisors (953361).

2104551 is a wasteful number, since it uses less digits than its factorization.

2104551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2104551 is about 1450.7070689839. The cubic root of 2104551 is about 128.1503563538.

Adding to 2104551 its reverse (1554012), we get a palindrome (3658563).

It can be divided in two parts, 210 and 4551, that added together give a square (4761 = 69²).

The spelling of 2104551 in words is "two million, one hundred four thousand, five hundred fifty-one".